Grain separator



July 14, 1925.

J. H. HEISHMAN GRAIN SEPARATOR Fil d Jan, 27, 1923 4 Sheets-Sheet l J.H. HEISHMAN GRAIN SEPARATOR I 4 Sheets-Sheet 3 Filed Jan. 27'. 1323 25,025? fiezisfi man July 14, 1925.

1 or! a .firrnw. l li l A d 4 a ,w l I d July 14, 1925.

J. H. HEISHMAN GRAIN SEPARATOR Filed Jan, 27, 1923 4 Sheets-Sheet 3 J.H. HEISHMAN A P E S N T. A R G d J 27 1923 4 Sheets-Sheet 4 PatentedJuly 14, 1925.

JOSEPH H. HEISII-IMAN, or CLARENDON, VIRGINIA.

GRAIN SEPARATOB.

Application filed January 27, 1923-. Serial No. 615,188.

To all whom it may concern:

Be it known tha I, Josnrrr H. HEISI-IMAN, a citizen of the UnitedStates,residing at Clarendon, in the county of Arlington and State ofVirginia, have invented certain new and useful Improvements in GrainSeparators, of which the following is a specification.

This invention relates to a grain separator and has for'an object theprovision of means for separating extraneous matter from grain, and moreparticularly for separating garlic and inferior or defective wheatgrains from the perfect wheat grains.

Another object of this invention is to provide means for scouring orcleaning the wheatgrains in order to remove the hairy substancetherefrom, and especially to remove any dirt or other extraneous matterfrom the furrow of each wheat grain.

A, further objectof this invention is to provide a grain separatorofgenerallyzimproved construction, whereby the device will be simple,durable, and inexpensive in construction, as well as convenient,practical, serviceable and efficient in its use.

lVith the foregoing and otherobjects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it' being understood that changes in the preciseembodiment of the invention herein disclosed, may be made within thescope of what is claimed, without departing from the spirit of theinvention.

The invention has been illustrated in its preferred embodiments in theaccompanying drawings, wherein: v

Figure 1 is an elevation of the separator;

Figure 2 is a vertical sectional view, viewed at right angles to Figure1, parts appearing in elevation; and

Figures 3, A, 5, 6'and Tare diagrammatic views, illustrating differentphases of operation of the device. o 7

Referring to the drawing there is shown a frame 1 having a drive shaft 2journalled thereon. A roller or drum 3 is supported by a shaft 4 whichin turn is journalled in spaced bearings 5 that are adjustably mountedon the frame, 1 as indicated at 6. This roller has a series of resilientfingers 7 extending f'rom the periphery thereof, each finger comprisingan inner section 8 and spectively,

outer section 9 which sections are disposed at an angle to each other.The inner section 8 is inclined towards the direction of p rotation ofthe roller 3, while the sections 9 areinclined contrary to the directionof rotation of this roller, A pulley 10 is secured to the shaft 4 and isdriven from a pulley 11 through the instrumentality of a crossed belt12, thereby causingthe roller v3 to rotate in a direction contrary tothe direction ofrotation of shaft 2. A piercing roller or drum 13 isrigidly secured to a shaft 14, which shaft is journalled in fixedbearings 15 mounted upon the frame 1. This roller has a plurality ofshort piercing fingers 16 extending from the periphery thereof andinclined away from the direc-, tion of rotation of the roller 13.Mounted in cooperable relation with the rollerf13 is a brushing ordetaching roller 17 provided with a plurality of substantiallytangential yielding fingers orbristles 17- extending from its peripheryand this roller is carried by a shaft 18 journalled in space bearingswhich bearings are supported by the frame 1 and are adjustably relativethereto as indicated at 20. An idler 21 is journalled in an adjustablebearing 22 carried by a bracket 23 which is'supported by the frame 1. Adrive pulley 24: is-rigidly secured to the shaft 2 and drives therollers 13 and 17 through the instrumentality of a belt 25 which passesover the pulley 2 4E, pulleys 26 and 27 mounted onshafts '14 and 18reand under the idler 21, thereby rotating the rollers 13 and 17 in thesame direction and contrary to the direction of rotation of roller 3. I

An inclined chute 28 is provided and terminates at its lower end at apoint above the roller 3 and a hopper 29 is locatedime mediately belowthe-rollers 3 and 13 and terminates at its lower end in a restrictedneck 30 which extends into an apron 31 upstanding from a screen housing.32. This screen housing is yieldingly supported in an inclined positionby resilient straps. or springs 33 preferably secured to the opposedlongitudinal, terminals of the screen housing 32 and-are secured to andsupported by the frame '1. I

A screen or foraminous 'partition34: separates the housing into upperand lower compartments 35 and 36, the lower compartment 36 discharginginto a chute 37 and the-upper compartment discharging into a conduit 38which is provided with a series of space baffle fins 39. The lowerportion of the 'conduit 38 communicates with a suction fan 40 throughthe instrumentality of a conduit 41 which is interrupted by a baffieplate 42 disposed immediately above a collecting chamber 43 having asliding closure 44. The fan 40 is driven from a pulley 45 mounted on theshaft 2 through the medium of a belt 46 trained over the usual fanpulley 47. A conveyor tube 48 communicates with the .chute 37, asindicated at 49, and a hopper 50 is formed at the upper terminalthereof, which hopper is disposed immediately below therollers 17. r

In order to impart a reciprocatory motion to the screen housing 32 thereis provided a shaft 51 journalled in bearings 52 carried by the frame 1,and having an offset or emnk portion 53 formed intermediate its ends.The crank portion 53 of the shaft 51 is operably connected to the screenhousing by means of a link 54. A pulley 55 is carried by the shaft 51and this pulley is driven from a pulley 56 mounted on the shaft 2,through'the instrumentality ofa belt 57.

In operation the grain is fed through the chute 28 and deposited onthe-rollers 3 and 13 which cooperate to separate the extra neous matterand defective wheat from the perfect wheat. The resilient fingers 7 ofthe roller 3 yield as the relativelyhard unimpaired grains of wheat passbetween the rollers 3 and 13 and allow them to gravitate into the hopper29. There they are discharged onto the screen 34, and since the screenis slightly inclined and is constantly reciprocated, the wheat will bedischarged from the lower end of the screen into the conduit 38. Owingto the presence of the baffle fins 39 within this conduit 38, the wheatwill pass slowly therethrough and if any particle of extraneous matteraccompanies the wheat it will be sucked into the conduit 41 and conveyedto any convenient point by means of the fan 40. Any relatively heavymatter that would not be readily discharged through the fan will impingeagainst the baffle plate 42 and drop into the collecting chamber 43 fromwhich it can be discharged by opening the closure 44.

As the wheat passes along the screen 34, wild seed and other extraneousmatter that may accompany it will gravitate through the screen into thelower compartment 36 from which they are then discharged into the chute37 and in turn into the tube 48. Thus it is obvious that any foreignmatter that may accompany the wheat into the hop per 29 will bethoroughly separated there from by the disclosed instrumentalities andthe clean and perfect wheat will be conveyed to any suitable point fromthe lower terminals of the conduit 38.

Ifgarlic or other relatively soft'matter roller 13, thereby causing theshort inclined I linger 16 to pierce the garlic and cause it to cling tothe roller 13. Further rotation of the roller 13 will convey the garlicaway from the roller 3, and bring it into engagement with the relativelylong fingers or' bristles 17 of the brushing or detaching roller 17,thereby releasing the garlic from the roller 13 and depositing it withinthe hopper 50 and then it is conveyed to any desired point through'theconveyor tube 48.

A... w. 4 w. L .4... Shouldanyweevrl eaten U1. fi eate wheat accompanythe perfect'wheat through the chute 28, the fingers 16 of the roller 13will pierce into the small openings formed by r the insects intl1lQefQQlilYQWh93Jlil-IICLQBAEQ it to cling to the roller 13 and beconveyed to the detaching roller 17 and released as hereinbeforedescribed.

Any soggy wheat that may to the roller 13 will also be pierced by thefinger 16 and conveyed to the detaching roller thereby separating thisdefective wheat from the perfect wheat.

The roller 3 is driven at a much higher speed than the piercing roller13, therefore if any dirty wheat grains should be fed to these rollers,the fast moving fingers '7 of the roller 3 will tend to rotate thegrains and at some time scour their surfaces, consequently removing alldirt and also removing the hairy substance usually carried by eachgrain. As shown'diagrammatically in Figure 4, the resilient fingers 7will also enter the furrow F of each wheat grain as it passes betweenthe rollers 3 and 13 and scrape-all extraneous matter that may be lodgedwithin the furrow therefrom.

The operation of the rollers is diagrammatically depicted by Figure 3,in which the garlic is designated G, weevil eaten or fly eaten wheat E,soggy wheat S, and the perfect wheat grain W, in which figure it isclearly'shown that the garlic and defective wheat is delivered to thehopper 50, while be conveyed the perfect wheat grains are deposited intoI wheat grain between these rollers. In Figure 7, a soggy grain, .or aweevil eaten or Wheat grain W, is shownpassing-between rollers 3 and 13,in which position the resilient fingers 7, due to theangular relationex} 8 and 9 thereof, vpressthis defective grain isting between the innerand outer sections arisa I to cause the short fingers 16 to pierce thegrain and convey it to the detaching roller. From the foregoing it isimani fest that by this arrangement all extraneous matter or imperfectwheat is separated from the 3 perfectwheat as'they pass between theroll-' ers' l3; and if any relatively smallparticles such as wild seedand the like should find itsway to-the hopper 29;- they willin turn beseparated from the wheat beforeit reaches'th'e conduit'38 andthen if anychaff or the like should be present this will also be separated from thewheat thereby delivering only perfect wheat to the desired point throughthe lower end of the conduit 38.

What I claim as new is:

1. A grain separator including 'a-rotatable piercing roller havinginclined piercing fingers extending from the periphery thereof, apressure roller "cooperating with the piercing roller-and rotatable at adifferent speed than the piercing roller so as to'c'ause components ofthe pressureroller to exert a stress towards the piercing roller-in thedirection of the length of the cooperating-piercing fingers. 1

2. A grain separator including a rotatable piercing roller havinginclined fingers extending from the periphery thereof, a

pressure roller cooperating with the piercing roller, and means forcausing components of the pressure roller tov exert 'a stress towardsthe piercing roller in the direction of thelength of the cooperatingpiercing fingers.

3. A grain separator including a rotatable piercing roller havinginclined fingers extending from the periphery thereof, means cooperatingwith the piercing roller for exerting a stress towards the piercingroller in the direction of the length of the cooperating piercingfingers to attach defective grain and extraneous matter to the piercingfingers, and means for detaching the said matter from the piercingfingers.

4. A grain separator including a rotatable piercing roller havinginclined piercing fingers extending from the periphery thereof in adirection contrary to the direction of rotation of the roller, ayielding pressure roller cooperating with the piercing roller androtatable in a direction towards the piercing roller at a greaterperipheral speed than the peripheral speed of the piercing roller tothereby exert a yielding stress towards the piercing roller in thedirection of the length of the tangential piercing fingers to attachdefective grain and extraneous matter to the piercing fingers, and meansfor detaching the defective grain and extraneous matter from thepiercing fingers.

5. A grain separator including a piercing roller, piercing fingersextending from-the peripheryof the piercing roller and disposed at atangent to the periphery of the roller in a direction contrary to thedirec tion of rotation of the piercing roller5 a pressure roller mountedin cooperable re lation to the piercing roller, pressure fingersextending from the periphery of the pressure roller,-said,fingers beingformed with inner and outer'sections, the'inner section of eachfingerbeing disposed at a tan gent to the pressure roller in the directionofrotation of the pressure roller and'the outer section of each fingerbeing disposed. at an angle to the inner section in-a direc' tion awayfrom the direction of rotation of the pressure roller, the pressurefingers cooperating with the piercing fingers to soperate defectivegrain from the perfect grain and to separate extraneous matter from theperfect grain.

6. A grain separator including a p'iercing roller, piercing fingerscarried by the periphery of the piercing roller and disposed at atangent thereto, a pressure roller mounted to cooperate with thepiercing roller, resilient fingers'extending from the periphery ofpressure-roller each. fingerbeing formed of inner and outer sectionsdisposed at an angle to each other, means for conveying grain to thepiercing and pres sure rollers, the resilient fingers of the pres sureroller yielding to permit the perfect grain to pass between said rollersand constructed to exert sufficient stress upon defective grain andextraneous matter to cause the piercing fingers to pierce the defectivegrain or extraneous matter thereby securing it to the piercing roller,and means for detaching the defective grain and extraneous matter fromthe piercing roller at a point remote from the pressure roller.

7. A grain separator including a rotatable piercing roller havinginclined piercing fingers extending from the periphery thereof in adirection contrary to the direction of rotation of the roller, ayieldable pressure roller rotatable in a direction towards the piercingroller and cooperating with the piercing fingers to attach defectivegrain and extraneous matter to the piercing fingers, and a detachingroller rotatable towards the piercing roller and cooperating with thepiercing fingers to detach the defective grain and extraneous matterfrom the piercing fingers.

8. A grain separator including-a rotatable piercing roller havinginclined piercing fingers extending therefrom in a direction contrary tothe direction of rotation of the roller, a yieldable pressure rollercooperating with the piercing roller and rotatable in a directiontowards the piercing roller at a greater peripheral speed than theperipheral speed of the piercing roller, and a de- .taching rollercooperating with the piercing roller and rotatable in'a directiontowards the piercing roller at a greater pe ripheral speed than theperipheral speed of the piercing'folle'r. m l

9. A grain separator including a piercing roller, piercing fingerscarried by the piercing roller, a pressure rollers-mounted to cooperatewith the piercing roller resilient finger-s extending from the pressureroller and each finger being formed of iri ner and outer sectionsdisposed at an angle to each other so as to exert a yielding stresstowards the pressure roller to attach defec he g a n e t aneous matterto, the piercing fingers.

A grain s parat r including a ro atable piereing reller" having inclinedfingers extending from the periphery thereof, a pressure rollerrotatable towards. the pierc ing roller and cooperating with thepiercing roller to attach matter to the piercing a, finge s n rf e wh eKeller;reta ehle towards the pierclng roller and shav ng tangen ialfingers exte ding therefrom to coepe ete wit the p er ing fingers todetach t s i atter ther frem l 1.- A gra n sepa ter incl dingc operati gr le s f r sepa ating perfe t grain and relatively hard extraneousmatter from de ective g am and elat vely soft extrane- Q e m ietteueeeee i. erde qeit ea the pee ""ii'ct g n and rehti' ehherd. e t aneous'inattere into one conveying means, and-the defective grain andrelatively-softextrane: vonus matter into alseparate conveying means, 1

means for separating the relatively hard extraneous matter from theperfect grain and to eorwey it to the same conveying mean into: h ch thede ective grain is deposited, v 7 v 12, A grain separator includingcooper:-

ating rollers for separating perfectfigrain means for separati theextraneous matter 1 from the perfect grain and to convey the extraneousmatter to the same conveying uhiehzthe; eeteetire gram i posited. I I cr In testimony whereof I aflix my signa ,ture

JOSEPH

